The bad news is that none of next year's Soundwave headliners will play sideshows, so you'll have to fork out for a festival ticket to see the likes of Slipknot, Marilyn Manson, Slash, Faith No More and Soundgarden.

Soundwave 2015 line-up

Marilyn Manson. Photo: Getty Images

But the good news is twofold: you can expect one-day tickets to go on sale and promoter AJ Maddah has promised to add "around 14 bands" to the line-up because many acts he approached were not ready to confirm their involvement. Or, as Maddah put in on social media: "a bunch of bands couldn't get their shit together in time. So now there'll be 2 [announcements]."

Advertisement

On Thursday morning, Maddah also tweeted that the "supplementary announcement" would happen in September, so stay tuned.

Reaction to Wednesday's announcement has been surprisingly mixed considering the line-up includes acts which have established themselves as household names in hard rock over the past two decades. It is a top-heavy line-up (so far) that is certainly weighted towards legacy acts, but does include progressive rock acts like Antemasque (which includes members of the Mars Volta and At The Drive In) and metalcore acts like Of Mice and Men and Escape the Fate, with a bonus emo heart-throb thrown in (Gerard Way).

A predictable split on social media has been around which of the two days has a better line-up: Faith No More, Soundgarden, Incubus, Lamb of God and Gerard Way headline the first day in each city, while Slipknot, Slash, Marilyn Manson, Fall Out Boy and Judas Priest lead day two.

One of the most common complaints was that there had been no mention of single-day tickets, although a Soundwave spokesperson told Fairfax they would be released later. All official information released so far refers only to "weekend passes".

Soundwave is on in Adelaide and Melbourne on February 21 and 22, and February 28 and March 1 in Sydney and Brisbane. Two-day tickets ($188) go on sale to Soundwave members on Friday and to the general public at 9am on August 29.